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UV protection paint for printed circuit board and preparation method thereof

A technology for printed circuit boards and protective paints, applied in coatings, fireproof coatings, epoxy resin coatings, etc., can solve the problems of corroding conductors, destroying printed circuit boards, reducing insulation resistance between conductors, etc., achieving good water resistance, The effect of short curing time

Inactive Publication Date: 2016-03-30
江苏欣和环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These factors will reduce the insulation resistance between conductors, corrode conductors and even directly destroy printed circuit boards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A kind of UV protective paint for printed circuit boards, comprising by weight: 6 parts of polyurethane, 13 parts of vinyl ester resin, 7 parts of thermosetting acrylic resin, 6 parts of silicone resin, 0.7 part of octylphenol polyoxyethylene ether , 0.6 parts of nonylphenol polyoxyethylene ether, 0.13 parts of methyl benzoylformate, 0.6 parts of emulsified silicone oil, 0.6 parts of 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, carboxymethyl fiber 0.6 parts of tripropylene glycol diacrylate, 1.3 parts of trimethylol propylene triacrylate, and 0.13 parts of dibutylhydroxytoluene.

[0014] The preparation method of the above-mentioned UV protective paint for printed circuit boards is as follows: first mix all the components at room temperature, disperse for 23 minutes at a speed of 5300r / min through a high-speed disperser, and then grind to a particle size of The diameter is 20μm, and it can be obtained by filtration.

Embodiment 2

[0016] A kind of UV protective paint for printed circuit boards, comprising by weight: 9 parts of polyurethane, 18 parts of vinyl ester resin, 9 parts of thermosetting acrylic resin, 9 parts of silicone resin, 0.9 part of octylphenol polyoxyethylene ether , 0.9 parts of nonylphenol polyoxyethylene ether, 0.18 parts of methyl benzoylformate, 0.9 parts of emulsified silicone oil, 0.9 parts of 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, carboxymethyl fiber 0.8 parts of tripropylene glycol diacrylate, 1.8 parts of trimethylol propylene triacrylate, and 0.18 parts of dibutylhydroxytoluene.

[0017] The preparation method of the above-mentioned UV protective paint for printed circuit boards is as follows: first mix all the components at room temperature, disperse for 28 minutes at a speed of 5800r / min through a high-speed disperser, and then use a three-roller grinder to grind at a speed of 450r / min to a particle size The diameter is 16μm, and it can be obtained by filtration. ...

Embodiment 3

[0019] A kind of UV protection varnish for printed circuit boards, comprising by weight: 5 parts of polyurethane, 10 parts of vinyl ester resin, 5 parts of thermosetting acrylic resin, 5 parts of silicone resin, 0.5 part of octylphenol polyoxyethylene ether , 0.5 part of nonylphenol polyoxyethylene ether, 0.1 part of methyl benzoylformate, 0.5 part of emulsified silicone oil, 0.5 part of 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, carboxymethyl fiber 0.5 parts of tripropylene glycol diacrylate, 1 part of trimethylol propylene triacrylate, and 0.1 part of dibutylhydroxytoluene.

[0020] The preparation method of the above-mentioned UV protective paint for printed circuit boards is as follows: first mix all the components at room temperature, disperse for 20 minutes at a speed of 5000r / min through a high-speed disperser, and then use a three-roller grinder to grind at a speed of 300r / min to a particle size The diameter is 25μm, and it can be obtained by filtration.

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PUM

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Abstract

The invention provides a UV protection paint for a printed circuit board and a preparation method thereof. The UV protection paint comprises polyurethane, vinyl ester resin, thermosetting acrylic resin, silicone resin, polyoxyethylene octylphenol ether, polyoxyethylene nonyl phenyl ether, methyl benzoylformate, emulsified silicone oil, diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, carboxymethyl cellulose, tri(propylene glycol)diacrylate, trihydroxymethyl-allyl triacrylate and butylated hydroxytoluene. The preparation method comprises the following steps: mixing all the components at normal temperature; dispersing a mixture obtained in the previous step with a high-speed dispenser; then grinding the mixture to a particle size of 15 to 25 [mu]m at a rotating speed 300 to 500 r / min by using a three-roller grinder; and carrying out filtering. The UV protection paint provided by the invention has high temperature resistance and a fast curing speed, can effectively prevent water and resist moisture and is green and environment-friendly. The preparation method is simple and suitable for industrial production.

Description

technical field [0001] The invention relates to the field of chemical coatings, in particular to a UV protective paint for printed circuit boards and a preparation method thereof. Background technique [0002] Printed circuit boards are the provider of electrical connections for electronic components. In the past ten years, my country's printed circuit board manufacturing industry has developed rapidly, and its total output value and total output rank first in the world. Electronic products are changing with each passing day, and are constantly developing in the direction of high precision, high density and high reliability. At the same time, the application of printed circuit boards is also facing a series of problems. Due to its wider application range, its application environment and application conditions are becoming more and more stringent. High temperature, humidity and slow curing speed are some of the most serious problems encountered in the application process of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D175/04C09D133/00C09D183/04C09D7/12
CPCC08L2201/08C08L2205/025C08L2205/035C09D5/18C09D7/63C09D7/65C09D163/10C08L75/04C08L33/00C08L83/04C08L71/02C08L1/286C08K5/101C08K5/13C08K5/5397
Inventor 郑春秋
Owner 江苏欣和环境科技有限公司